eqn, neqn, checkeq — Typeset Mathematics Test
Synopsis
/usr/bin/eqn [-dxy] [-fn] [-pn] [-sn] [file] ... /usr/bin/neqn [file] ... /usr/bin/checkeq [file] ...
Description
eqn and neqn are language processors to assist in describing equations. eqn is a preprocessor for troff(1) and is intended for devices that can print troff's output. neqn is a preprocessor for nroff(1) and is intended for use with terminals. Usage is almost always:
castle% eqn file... | troff castle% neqn file... | nroff
If you specify no files, eqn and neqn read from the standard input. A line beginning with .EQ marks the start of an equation; the end of an equation is marked by a line beginning with .EN. Neither of these lines is altered, so they may be defined in macro ...
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